ATCOM A21 User Manual

A2X(W)/A20LTE IP Phone User Manual
ATCOM TECHNOLOGY CO., LIMITEwww.atcom.cn8
LTE
Frequency band
LTE FDD: B1/ B3/ B8
LTE TDD: B38/ B39/ B40/ B41
TDSCDMA: B34/ B39
WCDMA :B1/ B8
LTE
Version
3GPP E
-
UTRA Realease 11
Bandwidth
1.4 /3 /5 /10/20MHz
Antenna
DL MIMO
, Support receive diversity
Data
L
TE
LTE FDD: Max 1500Mbps (DL) Max 50Mbps (UL)
LTE TDD: Max 130Mbps (DL) Max 35Mbps (UL)
DC
-
HSPA+
Max 42Mbps (DL) Max 5.76Mbps (UL)
UMTS
Max
384
Mbps (DL) Max
384
Mbps (UL)
TD
-
SCDMA
Max 4
.
2Mbps (DL) Max
2.2
Mbps (UL)
CDMA
Max
3.1
Mbps (DL) Max
1.8
Mbps (UL)
EDGE
Max
236.8K
bps (DL) Max
236.8K
bps (UL)
GPRS
Max
85.6K
bps (DL) Max
85.6K
bps (UL)
1.4. Software
 Sip 2.0 (RFC3261) and other related SIP RFCs
 6 SIP accounts registration
 STUN
 Jitter Buffer, VAD,CNG
 G711A, G711U, G722, G726-16, G726-24, G726-32, G726-40, G729, L16, iLBC_13_3,
iLBC_15_2, OPUS
 Echo Cancellation
 SIP Domain name, Authentication and Backup SIP Server
 DTMF（RFC2833, Inband, SIP INFO)
 Call transfer, Call forward, 5-way conference, Call hold, Call back
 DND(Do Not Disturb), Auto answer, Blacklists, Block Call-ID, Block Anonymous call, Dial
plan, IP call
 Phone book with 1000 contacts and 50 blacklists
 Call History with 400 records include answered calls, missed calls, dialed calls and forward
calls
 Auto update via HTTP, HTTPS, FTP, TFTP, DHCP, RPS and PNP

ATCOM A21 Specifications

General

Brand	ATCOM
Model	A21
Category	IP Phone
Language	English